1880.] PAL^ARCTIC AND iETHIOPIAN TOADS. 



Dimensions. 



561 



m. 



Prom snout to Tent 0'069 



Length of bead 0021 



Breadth of head 0025 



From eye to nostril 0-00o5 



From eye to tip of snout 0010 



Greatest diameter of orbit O'OOS 



Interorbital space 00055 



Horizontal diameter of tympanum .. 00045 



Vertical diameter of tymjjanum O'OOG 



Length of parotoid j 0*014 



Breadth of parotoid I 0005 



Body 

 Fore limb . 

 Hind limb. 

 Tibia 



0048 

 0041 

 0-086 

 0026 



b. 



c. 



m. 



0-093 

 0025 

 0-032 

 0-0055 

 0-011 

 0009 

 0-007 

 0-0055 

 00065 

 0-022 

 0-010 

 0-068 

 0050 

 0112 

 0-033 



m. 



0085 



0-021 



0028 



0-005 



0-010 



0008 



0006 



0-005 



0007 



0-022 



0-008 



0.064 



0-045 



0-090 



0-028 



d. 



m. 



0038 

 0011 

 0013 

 0-003 

 0005 

 0005 

 0-004 

 0002 



0002; 



0008 

 0-003 

 0027 

 0020 

 0-043 

 0013 



e. 



m. 



0-051 

 0-015 

 0017 

 0-003 

 0006 

 0006 

 0003 

 0004 

 0-005 

 0010 

 0005 

 0036 

 0033 

 0-063 

 0-019 



/. 



m. 



0053 

 0014 

 0-019 

 0003 

 0006 

 0-006 

 0-004 

 0-0035 

 (•-004 

 0011 

 0-004 

 0039 

 0-032 

 0064 

 0-019 



m. 



0-136 



0037 



0047 



0008 



0017 



0012 



0014 



0006 



0007 



0-024 



0013 



0099 



0078 



0162 



0-047 



a. <S . Gaboon. Brussels Museum. 



b. $ . Senegal. Paris Museum. 



c. $ . Benguella. Milan Museum. 



d. Young. Egypt. Brussels Museum. 



e. (S . Var. A. Boutry, W. Africa. Leyden Museum (as 

 B. pantherinus), 



f. $ . Var. A. Boutry, W. Africa. Leyden Museum (as 

 B. pantherinus) . 



g. $ . Var. B. Port Elizabeth. British Museum. 



Description. — The head resembles that of B. vulgaris. The snout 

 is short, rather prominent, truncated ; the canthus rostralis is rather 

 distinct. The nostrils are nearly equally distant from the anterior 

 angles of the eyes and from the tip of the snout ; and the distance 

 between them equals two thirds of that between one of them and 

 the lip. The eyes are nearly equally distant from the tip of the 

 snout and from the angles of the jaws. The interorbital space, flat 

 or slightly concave, is rather broad, its breadth being equal to or a 

 little less than the greatest breadth of the upper eyelid. The 

 tympanum is very distinct, large, vertically oval ; its greatest dia- 

 meter equals at least three fourths of that of the eye in the adult ; it is 

 smaller in the young. The cleft of the mouth extends to the level of 

 the centre of the tympanum. The tongue is rather large, elliptic, 

 nearly twice as long as broad. The parotoids vary greatly ; though 

 always elliptical, and with slightly divergent inner edges, they may 

 be very prominent or depressed, longer or shorter than the head 

 from their front edge to the tip of the snout ; their breadth equals 

 from a third to half their length. But all these differences cor- 

 respond with no others, nor with the localities whence the specimens 

 come J and in a large series of specimens it is easy to find all the 

 transitions ; so that no importance must be attached to these pecu- 

 liarities. 



